Abstract: A beverage brewing assembly includes a mixing chamber configured to receive a first beverage material and defining an aperture configured to be selectively opened. A hot water source is operably coupled with the mixing chamber and is configured to selectively provide a predetermined quantity of hot water to the mixing chamber and thereby form a mixture comprising the first beverage material and the predetermined quantity of hot water. A brew basket is positioned below the mixing chamber and includes an outlet at a bottom of the brew basket. The brew basket is configured to house a second brewing material and is configured to receive the mixture from the aperture of the mixing chamber to interact with the second brewing material. A receptacle is positioned below the brew basket and is configured to receive a brewed beverage from the outlet of the brew basket.

Abstract: A wash-aid dispenser (20) for dispensing dishwasher detergent and rinse-aid employs a DC motor (46) and drive train (43) to separately actuate a door (23) for the release of detergent and a valve (21) for the release of rinse-aid allowing reduced noise and reduce energy operation using a single electric actuator.

Abstract: A fluid network exchange system for efficiently exchanging fluid in a fluid network for prevention of hygiene risks. The system includes a source and a plurality of sinks. The system also includes flow meters for determining the flow rate at each of the sinks and automatic flushing devices for flushing fluid at each of the sinks. The system determines an order and a flushing time for the plurality of sinks to be flushed. The sinks are flushed starting with the sink with the highest flow rate and ending with the sink with the lowest flow rate. Flushing times are determined based on the length of different pathways corresponding to different sinks.

Abstract: A laundry appliance includes a rotating drum for processing laundry. A blower directs process air through an airflow path that includes the rotating drum. A heat exchanger is positioned within the airflow path that dehumidifies the process air. A fixedly-secured lint filter captures lint from the process air at a position upstream of the heat exchanger. A fluid spray system has spray nozzles that deliver fluid to a surface of the fixedly-secured lint filter. Each spray nozzle of the plurality of spray nozzles directs captured lint away from the fixedly-secured lint filter.

Abstract: A fluid network exchange system for efficiently exchanging fluid in a fluid network for prevention of hygiene risks. The system includes a source and a plurality of sinks. The system also includes flow meters for determining the flow rate at each of the sinks and automatic flushing devices for flushing fluid at each of the sinks. The system determines an order and a flushing time for the plurality of sinks to be flushed. The sinks are flushed starting with the sink with the highest flow rate and ending with the sink with the lowest flow rate. Flushing times are determined based on the length of different pathways corresponding to different sinks.

Abstract: A brew basket includes a body defining an internal cavity for holding a quantity of a beverage component, such that, in use, water introduced into the internal cavity contacts and passes through the beverage component to produce a brewed beverage. The brew basket further includes an outlet orifice for the brewed beverage defined by a downward extension of the brew basket. A cap engages the downward extension of the brew basket, with an opening defined through a bottom wall of the cap. A gasket is received in the cap, and a thickness of the gasket determines a position of the cap relative to the downward extension of the brew basket, and thus determines a flow rate of the brewed beverage from the outlet orifice through the opening defined through the bottom wall of the cap.

Abstract: A laundry treating apparatus is provided that may include a laundry accommodation device that provides a space in which laundry may be accommodated, the laundry accommodation device having an exhaust device that exhausts air and a supply device that supplies air; a circulation passage that guides air exhausted from the exhaust device to the supply device, the circulation passage having an inlet that communicates with the exhaust device; a heat exchanger provided in the circulation passage; a filter frame provided between the heat exchanger and the inlet; a filter fixed to the filter frame and provided in the circulation passage; and a filter washer fixed to the filter frame, that supplies washing water to the filter.

Abstract: To facilitate the collection of grease and water from commercial kitchen exhaust fans the invention provides a collection tank in communication with the drainage spout of the fan assembly. The tank has a lid for sealing the tank, a first reservoir for collecting the stream of grease and water and a second reservoir below the first reservoir for receiving water separated from the grease and water stream in the first reservoir. The first and second reservoirs are separated by a sloping plate. The tank also includes a siphoning apparatus which when connected to a source of high pressure fluid such as water or steam can purge the second reservoir of water and recycle the water back to a fan cleansing operation or to a disposal facility.

Abstract: A system for recirculating lock water includes a sealable storage area located near a lock for receiving water from the lock. The storage area is large enough to house the lock water with excess space between a maximum water level and the ceiling. The system also includes at least one compressor connected to the storage area to create a vacuum to withdraw the water from the lock into the storage area.

Abstract: A stormwater gully comprises a chamber in which an outlet assembly is installed. The outlet assembly comprises filter units connected to an outlet housing. In use, stormwater can flow from the chamber in an upwards direction through filter units into the outlet housing. The outlet housing has an outlet, which extends from the gully. At high rates of flow, the water level in the chamber will rise until water can flow into the outlet housing through bypass inlets. The bypass inlets are connected to the interior of the housing by siphons defined by arched regions of a top cover. The siphons allow rapid discharge of water until the water level returns below the level of the bypass inlets. A slow drain down feature is provided which enables the chamber and outlet assembly to be drained below the level of the primary inlet.

Abstract: A rain gauge with automatic priming siphon which uses the principle of indirect measurement of the rainfall by determination of its weight, for which it has a base (1), on which rests on a load cell (3) bearing a container (2) which receives the rainwater via a mouth (4). The emptying of the container (2) is assured periodically by means of a siphon (7), with the container (2) presenting a variable section with a minimum at the height of the bend of the siphon (7). In this way the priming time of the siphon (7) is radically reduced without affecting its discharge time. In addition, the bottom of the container (2) presents a reduction in section, and attached to it is a damper (6) which directly receives the rainwater channelled via the mouth (4). In this way the precision and security of functioning of the siphon (7) are furthermore increased.

Abstract: A stormwater gully comprises a chamber in which an outlet assembly is installed. The outlet assembly comprises filter units connected to an outlet housing. In use, stormwater can flow from the chamber in an upwards direction through filter units into the outlet housing. The outlet housing has an outlet, which extends from the gully. At high rates of flow, the water level in the chamber will rise until water can flow into the outlet housing through bypass inlets. The bypass inlets are connected to the interior of the housing by siphons defined by arched regions of a top cover. The siphons allow rapid discharge of water until the water level returns below the level of the bypass inlets. A slow drain down feature is provided which enables the chamber and outlet assembly to be drained below the level of the primary inlet.

Abstract: An apparatus for level control in a fluid tank is provided, wherein the fluid tank is designed to accommodate a supply of a fluid. The apparatus includes at least one conveying line through which the fluid can flow and which has at least one control opening which is hydraulically connected to the fluid tank. The control opening is designed to at least largely prevent fluid flowing out of the conveying line and into the fluid tank when at least one minimum level in the fluid tank is exceeded, and the control opening is further designed to allow fluid to flow out of the conveying line and into the fluid tank when the at least one minimum level in the fluid tank is undershot.

Abstract: A septic field dosing system is described which utilizes a self starting true siphon to deliver a dose of septic tank effluent into a conventional septic field. The precision siphon unit not only eliminates the need for electrical services to the septic tank, thereby eliminating the need for pumps and solenoid operated valves and switches at the septic tank, but also contains the effluent handling equipment in a small unit. For example, the drawdown of the septic tank is used to entirely control the operation of the dosing siphon. Further, the dimensional configuration of the precision siphon operates within the boundaries of the draw down to deliver a proper size dose to the septic field. While a typical septic tank can hold of the order of a thousand or more gallons, the precision siphon can easily fit into a five gallon bucket.

Abstract: A self-restarting pool cover siphon includes a weighted housing placed on a pool cover having water thereon, the housing having a hollow interior and openings through which water can enter, a tube in fluid communication with the hollow interior and through which water drains, the tube bent into a loop and having an opening between opposite ends thereof at an upper position of the loop, and a differential pressure causing device removably connected to the opposite end of the tube for initially causing a differential pressure in the tube to cause water in the housing to drain through the tube, and thereafter being removed from the opposite end of the tube, wherein additional water on the pool cover will cause water remaining in the loop to pass the opening in the loop to re-prime the siphon and cause drainage of the water from the pool cover.

Abstract: Irrigation and drainage systems are disclosed, including a saturated zone and at least one pipe in communication with the saturated zone. The pipe(s) can be configured to comprise a tubarc porous microstructure for conducting water from the saturated zone to an unsaturated zone in order to drain the water from the saturated zone. The water can be delivered from the saturated zone to the unsaturated zone through the tubarc porous microstructure, thereby permitting the water to be harnessed for irrigation or drainage through the hydrodynamic movement of the water from one zone of saturation or unsaturation to another.

Abstract: An oil from water separator has an oil disengagement chamber adapted to receive an oil and water mixture and retain it for a sufficient time in a relatively undisturbed state so that oil in the mixture floats to the top of the mixture. This results in a substantially oil free volume of water having a layer of oil derived from said oil and water mixture floating on the surface of the mixture. The oil disengagement chamber is partially separated from an effluent water chamber by an under flow baffle which ducts said substantially oil free volume of water to the effluent water chamber. The oil disengagement chamber has a low liquid level which is higher than the under flow baffle. The outflow of the substantially oil free volume of water from the effluent water chamber is limited to a rate of outflow which is a function of the head of the liquid in the effluent water chamber.

Abstract: A hot water humidifier with an automatic siphon drain fed with cooler source water is flushed via a drain. The humidifier includes the humidifier tank and an inverted U-shaped siphon conduit having one end coupled to the tank and the other end coupled to the drain. A valve controlling the cooler source water feeds the water into the tank to maintain the temperature of an admixture of cooler source water and any preexisting tank water at or below a predetermined temperature during a flush cycle. The tank is flushed and drained via the automatic siphon based upon the level of the admixture in the tank and the level of admixture in the siphon. The source water may be coupled to the humidifier tank via the siphon conduit such that cooler source water may be added during the siphoning action. A method of flushing a hot water humidifier is also included.

Abstract: A method and system for harnessing an unsaturated flow of fluid utilizing a reversible unsaturated siphon conductor of fluid having a tubarc porous microstructure. Fluid is conducted from a zone of higher (+) fluid matric potential to a zone of lower (−) fluid matric potential utilizing a tubarc porous microstructure. The fluid can be reversibly transported from different zones bearing a differential fluid matric potential according to the status of the fluid matric potential in each zone utilizing the tubarc porous microstructure. The tubarc porous microstructure comprises an enhanced geometric porosity. In this manner, the fluid can be harnessed for irrigation, drainage, filtration, fluid recharging and other fluid delivery uses, such as refilling writing and printing instruments.

Abstract: A fluid level controller which replaces fluid lost from a container thus maintaining the fluid level in the container. It is comprised of the following major pieces: an airtight reservoir (10) with cap (14), fill stem (12), feed lube (16), and tube attachment fittings (18a and 18b); several lengths of fluid conduit, (22a,b) and a u-bend (26) which form a siphon such that one end reaches into the bottom of reservoir (10) and the other reaches into the container below the desired fluid level; a length of conduit, (22c) which forms an air return line allowing air into reservoir (10); a stand (8) atop which sits the reservoir; a tubing clip (24); and a shut-off valve (20). The u-bend (26) allows the controller to preserve the initial prime of the system so that it only needs to be primed once. The shut-off valve (20) allows easy refilling of the controller once the fluid reservoir empties. These two features make the controller extremely easy to use.

Abstract: An apparatus for creating surges in an aquarium uses a pump to move water from the aquarium into an external tank. A siphon tube periodically creates surges by draining water from the tank back into the aquarium. The siphon tube has an inlet at a predetermined elevation within the tank, an outlet for discharging water from the tank into a smaller secondary basin, and an intermediate high point at an elevation above the inlet. The secondary basin has a series of water dispersion outlets that allow the surge to discharge into the aquarium. The siphon tube allows water to surge from the tank into the secondary basin and thence back into the aquarium when the water level in the tank rises above the high point of the siphon. The surge continues until the water level falls below the inlet to the siphon. The pump continues to pump water from the aquarium into the tank at a relatively constant rate throughout this entire process, but at a lower flow rate than can be drained by the siphon tube.

Abstract: Drain apparatus drains an evaporative cooler housing by siphon action. The siphoning action is started when a pump which pumps water for cooler pads is turned off, and the water in a conduit flows downwardly and a valve is switched, directing the downwardly flowing water into a chamber disposed over the overflow standpipe in the housing. The water level in the chamber is the water level in the housing, and the down flowing water fills the chamber, causing the water to flow down the pipe and lowering the atmospheric pressure in the chamber to begin siphoning action. At the same time, a check valve at the bottom of the chamber opens to allow water from the housing to flow into the chamber to drain the housing. Several embodiments are disclosed, including embodiments in which siphoning action may be commenced by raising and lowering a drain hose connected to the standpipe.

Abstract: A lint remover 10 is provided for removing lint from an air exhaust of a clothes dryer D. An enclosure 20 includes an inflow tube 60 delivering water into the enclosure 20. The inflow tube 60 is coupled to a clothes washer W used water discharge. The enclosure 20 includes a suction passage 80 which is oriented to utilize gravity to suck water within the enclosure 20 out through the suction passage 80, through an outflow tube 90 and into a water drainage system WD. The suction passage 80 is configured to always provide a pool P with a surface S within the enclosure 20. An inlet duct 40 directs dryer D exhaust air from the dryer D into the enclosure 20. An inlet vane 32 directs this dryer D exhaust air against the surface S of the pool P, causing lint within the dryer D exhaust air to be deposited within the pool P. An outlet duct 50 draws the dryer D exhaust air out of the enclosure 20. The pool P is refreshed with replacement water within the enclosure 20 every time the washer W drains water.

Abstract: A water display that has a container with a floor that defines an inner cavity. The container has a top opening adapted to allow a fluid to flow into the inner cavity at a first predetermined flowrate. The floor is constructed to contain the fluid when the fluid flows into the inner cavity, such that the fluid reaches a first predetermined level within the container. The floor also has a floor opening adapted to allow the fluid to flow out of the inner cavity. Within the container is a valve operatively connected to the floor opening that allows the fluid to flow out of the inner cavity at a second predetermined flowrate, when the fluid level reaches the first predetermined level. The second flowrate being greater than the first flowrate, such that when the valve allows the fluid to flow out of the container, the fluid level in the inner cavity decreases until the fluid level reaches a second predetermined level.

Abstract: A siphon pump system for pumping water from a water source to a supply destination. The system includes a holding canister through which the water flows, and a first timing bucket associated with the holding canister for controlling the admission of air into the system to thereby permit flow of water contained within the holding canister. A lower flow control chamber is provided adjacent the outlet from a long, second siphon conduit extending from the holding canister to control the refilling of the holding canister in an automatic manner and without the need for connections with a source of electrical power.

Abstract: An automatic, continuous self-draining, self-cleaning and self-replenishing method and apparatus for watering stock including a bowl with siphon and a source of water for continuous drip.

Abstract: The invention provides an apparatus and method for removing spent solvent from manufacturing apparatus during operation. The apparatus uses a collection housing having input, exhaust, and output ports with U-shaped output transfer tubing positioned inside the housing and connected on one end to the output port. The output tubing arches upward inside the housing and has a tapered opening positioned near the bottom of the housing. Negative pressure is applied to the exhaust port to move cleaned air out of the housing and solvent laden air into the housing through the input port. Solvent precipitates from the air and collects as a liquid in the housing until the liquid level rises above the arched bottom of the transfer tubing. At this point, the solvent flows through the tubing and the output port, and out of the housing under the influence of gravity at atmospheric pressure.

Abstract: A device for irrigating plants comprises a container adapted to be mounted adjacent to each plant to be irrigated and to be filled at a low rate over a long period of time, for example around-the-clock. The container further includes a water discharge conduit having a loop portion at a pre-fixed height above the container bottom, the arrangement being such that when the water has accumulated within the container to substantially the top of the loop portion, there is produced automatically, and without the movement of any parts, a siphonic-flow-discharge of the water container at a high rate and over a short period of time.

Abstract: An apparatus and method for on-line monitoring of a characteristic of a process liquid stream includes a cell for isolating a precise volume of the liquid. There are provided means for over-filling a sample chamber and means for removing the excess from the chamber comprising a downwardly extending drain line which terminates at a precisely positioned, downwardly facing inlet and means for applying negative pressure to the drain line to draw the excess liquid upwardly from the captured volume until the liquid level reaches the inlet and entry of air disrupts the liquid draining effect. The embodiment shown employs a closed volume, a vent, a conduit for delivery of process liquid into the cell under pressure and a syphon/drain line for removing excess liquid from the cell volume until there remains only a sample of accurately repeatable volume.

Abstract: A siphon purge system functions to remove water and accumulated sediment from the water reservoir of an ice making machine. The system includes an inverted U-shaped tube mounted in the reservoir, the tube having an inlet leg portion, an opposed outlet leg portion and an interconnecting bight portion. The outlet leg portion is connected to a drain in the reservoir while the inlet leg portion has an open entrance end positioned in close proximity to the bottom of the water reservoir. A siphon breaker opening in the bight portion of the U-shaped tube controls water flow through the tube as follows. Water drains through the tube when the water level in the reservoir rises to the level of the bight portion, and the water continues to drain until the level reaches the full height of the bight portion.

Abstract: A self actuating storm or flood pump used with septic tank sewage treatment facilities with leach beds and also used to pump excessive fluids from the lower floors of buildings such as flooded basements in dwellings. A tubular means extends in a vertical direction in said leach bed or from said floor and means are provided for fluid such as surronding water to seek its own level inside of the tubular means. A siphon hose having opposing ends extends from a lower portion of said tubular means up toward the upper portion of the tubular means and then outward from the tubular means to a disposal area. The outward end of the siphon hose terminates at a lower vertical point than the inner end of the siphon house. The inner end of the siphon hose communicates with the inside diameter of the tubular means so that excess fluid levels cause the fluid to flow through the siphon hose to the disposal area until the fluid level surrounding said tubular means reaches a level just below the inner end of the siphon hose.

Abstract: In a drainage system for maintaining a swimming pool cover drained of accumulated precipitation, a pump with its intake is disposed in a fluid trap defined by an upper surface of the swimming pool cover. A discharge port of the pump is disposed outside of the fluid trap. A sensor is disposed in a flow path of the pump for detecting the presence of fluid flow therethrough, while a clock unit is operatively connected to the pump for periodically operating the pump for a ten-second interval. A control circuit continues to operate the pump beyond the ten-second interval upon the detection by the sensor of fluid flow through the pump at the end of the ten-second interval. In that case, operation of the pump is terminated only upon a cease of fluid flow through the pump.

Abstract: An apparatus, including a primary container or tank for receiving fluid, and a secondary or dispersing tank at a lower level for receiving fluid in a controlled manner from the upper tank. Fluid transfer is perfomed by siphoning tubes, at least one primary siphoning tube being contained within the primary tank. The primary tank includes an opening with a fitting for attachment to a conventional source of water such as to a hose connected to a municipal water supply. The primary siphon tube effects flow of fluid to the secondary tank, which contains a plurality of smaller diameter siphon tubes, with each tube in turn providing fluid to a receiving area, such as one or a group of plant beds. A valve is provided for controlling the outlet of the primary siphon tube. Vertical adjustments can be made to the secondary tank siphon tubes provided for controlling the respective outlets of the secondary tank siphon tubes.

Abstract: A vent arrangement for fuel tanks of motor vehicles which includes an expansion tank, with which is connected an expansion line extending horizontally in the vehicle transverse direction which includes two line sections extending in mutually opposite directions, of which one terminates in the atmosphere and prevents an outflow of fuel in the turned-over head position of the fuel tank.

Abstract: A valve assembly particularly usable with a coffee brewing basket being automatically dripless during the coffee brewing cycle which includes a valve body member having a head section and a main section threadedly engageable through the lower opening in the brewing basket by threaded engagement with a siphon cap thereabove. The siphon cap includes a plurality of slots for admitting brewed coffee therethrough for siphon feeding and a main tube extending downwardly through a main flow aperture defined in the upper portion thereof to facilitate the main avenue of flow of brewed coffee downwardly through the brew basket opening. Engagement between the main valve body member and the siphon cap is achieved by threaded engagement and a truncated section is included for defining a siphon flow path adjacent the threaded engaging sections.

Abstract: A siphon apparatus for hindering beavers from blocking the inlet of a flood control riser in a water reservoir. The siphon apparatus includes a first conduit for being positioned within the riser, the first conduit having a lower end and an upper end; a second conduit for being positioned outside the riser, the second conduit having a lower end and an upper end, the lower end of the second conduit being at a higher vertical plane than the lower end of the first conduit; and a third conduit for joining the upper ends of the first and second conduit and for allowing water to be siphoned from the lower end of the second conduit to the lower end of the first conduit.

Abstract: A beverage dispensing machine which combines a powdered beverage mix and water in a first mixing chamber, provides for additional dispersion and solubilization of the powder in water in one or more additional mixing chambers and thereafter gravity feeds the powder-containing liquid into a low-capacity reservoir from which the beverage may be dispensed on an intermittent basis.

Abstract: A safety device for monitoring the condition of the condensate outlet conduit in a high efficiency furnace is provided which comprises a float member positioned in a condensate trap arranged to float on the condensate and to rise in response to a rising level of condensate in the trap to block the gas vent inlet. A pressure sensing device is utilized to sense the back pressure in the vent and when the float blocks the vent inlet, the back pressure increased and the sensing device will then operate to terminate operation of the furnace.

Abstract: A floppy disc recording and/or reproducing apparatus includes a driving shaft for rotationally driving a floppy disc, a cam body having a cam part, and a driving mechanism for rotating the driving shaft and the cam body independently of each other. A pair of guide parts are arranged on a single imaginary line and disposed on opposite sides of the driving shaft. A carriage has a head for recording and/or reproducing signals on and/or from the floppy disc which is rotated by the driving shaft. A pair of guided elements are located on the carriage, for linearly moving the carriage under guidance of the pair of guide parts. One of the pair of guided elements makes contact with the cam part of the cam body and is displaced as the cam body rotates, so as to move the carriage continuously.

Abstract: A conveyor belt dewatering system in which a siphon tube or pipe is vertically moveable on a tubular support whereby selectively its inlet is lowered into a conveyor belt. Counterweights counter the weight of the siphon tube, these weights being positioned in the tubular support. A source of service water is turned on by a float switch sensing water is the conveyor belt, the service water being used to submerge the weights and lessen their effect and at the same time be supplied to the siphon tube to increase its weight, whereby a siphon tube is lowered into the conveyor belt and siphoning from it commenced.

Abstract: A pipet cleaning apparatus in which cleaning liquid is fed into a cleaning tank, where a pipet is accommodated, through a feeding pipe line, a liquid level in the tank is raised to the full liquid level to immerse the pipet in the cleaning liquid, then the used cleaning liquid is overflown through an overflow portion of a discharging pipe line and by repeating the same process, the pipet cleaning is carried out, characterized in that the cleaning liquid is detected by a sensor at a level lower than the full liquid level by each cleaning time, the detected signal is counted by a counter, and when a preset number of cleaning times is counted, a valve of the feeding pipe line is closed.

Abstract: A baker's dough proofing and raising unit includes a vessel having a vacuum siphon and water-addition mechanism for respectively extracting residual water and adding new water. A temperature and humidity adjusting cabinet is connected by flow conduits to and from the air space above the dough being proofed. A manual setting mechanism sets the desired temperature and humidity of the circulating water vapor. Audible and visual alarm mechanisms alert operators to predetermined variations of the temperature and humidity of the circulating water vapor. A preset timer controls the cleaning of the vessel by siphoning water from it and refilling it.

Abstract: Apparatus for automatically purging the primary reservoir in an evaporative cooler which utilizes a secondary reservoir supplied with a portion of the output flow of the recirculating pump. The primary and secondary reservoirs each contain drain valves actuated when the fluid level therein exceeds a predetermined level. The normal operating fluid level in the primary reservoir is established below the drain level. When the secondary reservoir is filled and drains, its flow is directed into the primary reservoir causing it to exceed its fluid drain level and thus automatically purge the primary reservoir of fluid.

Abstract: A spray system is provided for distributing fluid over a selected area through a distribution header to spray units. A control unit uses a siphon loop to continuously cycle an internal water level between two elevations. A water level float provides an output for actuating a valve effective to vary fluid pressure in the distribution header and affect a sweeping of the spray produced by the spray units. The fill rate of the control unit may be varied to change the sweeping rate of the spray through the spray units.

Abstract: A hydraulic memory device has two elongated passages for liquid, an input member connected with upper ends of the elongated passages for liquid supply into the latter, and two output members each connected with a lower end of the respective passage, wherein the output members are formed so that a portion of liquid supplied in a preceding step remains in one curved output member, and during a subsequent step of liquid supply the liquid will flow into an elongated passage provided with the other output member.

Abstract: A process for automatically providing for periodic surge flow or liquid slugs in the catalyst bed to insure that the catalyst is periodically fully wetted. Therefore, before dry spots develop in the bed and some catalyst particles are deprived of the liquid reactants, the aforesaid liquid pulse or slug will rewet the catalyst. This desired periodic introduction of a liquid slug through a catalyst bed is accomplished by the provision of a plurality of automatically actuating and operating siphon means disposed and distributed across the area of the distributor tray means within the reactor.

Abstract: A liquid-plug-creating device includes a collection tank or basin into which liquid flows such as the outflow from sanitary appliances. From the outlet at the bottom of the tank a riser extends upwardly at an acute angle to the horizontal. At the opposite end from the tank outlet, the riser terminates in a bend which reverses the direction of flow through the riser into a downwardly extending vertical pipe. A U-shaped piece of pipe with a horizontal outlet is connected to the lower end of the vertical pipe and provides a special form of trap. When the tank and the riser are completely filled with liquid, any additional liquid added exceeding a minimum flow, causes a liquid seal to be formed in the piece of pipe at the lower end of the vertical pipe. The excess flow creates a vacuum in the vertical pipe which sucks the liquid through the riser out of the tank in the manner of a siphon. The liquid immerges from the device in the form of continuous plugs with high kinetic energy content.

Abstract: A condensing furnace utilizing a pulsating combustion process discharges flue gas and condensate from the furnace through a flue gas conduit. A drain leg assembly is coupled to the flue gas conduit for effectively separating the condensate from the flue gas, whereby the flue gas is discharged to the flue gas vent and the condensate is discharged to a drain line. The drain leg assembly includes tubular body means having a flue gas outlet at the upper end thereof and means defining a condensate reservoir at the lower end thereof. A vent pipe within the tubular body means and having a bore smaller than that of the tubular body communicates at one end to a condensate outlet means, and the other end of the free end of the vent pipe extends toward the bottom of the tubular body, but is spaced therefrom. The normal level of condensate collected in the tubular body means is above the bottom of the vent tube so as to assure separate discharge of flue gas and condensate from the drain leg assembly.

Abstract: A cleaning system for a printing press having a chamber for the cleaning liquid, a supply line with a valve for controlling the flow of liquid into the chamber and a nozzle connected to the chamber at a point above the bottom of the chamber and extending above the area to be cleaned. A siphon of inverted U-shape having an inlet extending to near the bottom of the chamber is positioned so that the outlet is below the inlet and above the area to be cleaned. The siphon is sufficiently shallow so that the siphon is completely filled when the cleaning liquid is being discharged through the nozzle, with the result that when the valve is closed the siphon serves both to lower promptly the level of liquid in the chamber and to cause a reverse flow of air through the nozzle, to inhibit dripping therefrom.

Abstract: System for automatically dispensing a liquid treatment chemical from a replaceable supply bottle into an intermittently flowing liquid stream such as a recirculating water supply for a refrigeration system. The system has a feeder chamber into which the liquid stream flows which is periodically emptied by a siphon tube when the liquid reaches a level sufficient to establish a siphon effect in the siphon tube. The rising level of liquid in the chamber also actuates, by means of a float member, the valve portion of a closure assembly on the inverted top of the supply bottle. The valve portion is fed by a capillary tube and dispenses a predetermined, very small quantity of chemical each time it is actuated. The valve portion is prevented from becoming clogged by chemical crystals during inactive periods by being mounted so that its surface will be flushed each cycle by the water which rises in the feeder chamber.